Create an overshot "inlay" ?
I am new to weaving and have a project in mind that will be overshot. It is a violin blanket (basically it covers the violin in the case to protect it when the case is closed). I am using precious hand spun yarn as the pattern yarn. The top of the blanket I am weaving will need to be sewed to a backing. I do NOT want to waste the precious hand spun yarn where it will be caught in a seam.
So my idea was to thread the outermost several edges on other heddles so they are only tied up and used for the plain weaving. This is fine and I understand this part.
My question is, in the "inlay" section, do I need a floating selvedge or an extra end to weave around? How exactly would this work?